| (19) |
 |
|
(11) |
EP 2 213 279 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
13.10.2010 Bulletin 2010/41 |
| (43) |
Date of publication A2: |
|
04.08.2010 Bulletin 2010/31 |
| (22) |
Date of filing: 31.01.1996 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
Designated Extension States: |
|
LT LV SI |
| (30) |
Priority: |
26.10.1995 GB 9521937
31.01.1995 GB 9501841
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
|
06004066.4 / 1666023 |
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02007397.9 / 1232745 |
|
96901439.8 / 0806938 |
| (71) |
Applicant: Vectura Limited |
|
Chippenham, Wiltshire SN14 6FH (GB) |
|
| (72) |
Inventor: |
|
- Staniforth, John Nicholas
Chippenham,
Wiltshire SN14 6FH (GB)
|
| (74) |
Representative: Simpson, Mark Geoffrey et al |
|
Potter Clarkson LLP
Park View House
58 The Ropewalk
Nottingham
NG1 5DD
Nottingham
NG1 5DD (GB) |
|
| |
|
| (54) |
Improvements in and relating to carrier particles for use in dry powder inhalers |
(57) A powder for use in a dry powder inhaler includes active particles and carrier particles
for carrying the active particles. The powder further includes additive material (4)
on the surfaces of the carrier particles to promote the release of the active particles
from the carrier particles on actuation of the inhaler. The powder is such that the
active particles are not liable to be released from the carrier particles before actuation
of the inhaler. The inclusion of additive material (4) in the powder has been found
to give an increased respirable fraction of the active material.